Heat the oven to 250°F. Wrap the tortillas in aluminum foil and warm in the oven.
Meanwhile, in a small bowl toss the tomatoes with 1 Tbs. of the lime juice, about 1-1/2 Tbs. of the cilantro, and a generous pinch of salt. Set aside.
If using the pepitas, heat 1 Tbs. of the olive oil and the pepit...